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Keyword: Populus tremuloides

Guidelines for aspen restoration in Utah with applicability to the Intermountain West

Publications Posted on: May 07, 2019
As highly productive and biologically diverse communities, healthy quaking aspen (Populus tremuloides; hereafter aspen) forests provide a wide range of ecosystem services across western North America. Western aspen decline during the last century has been attributed to several causes and their interactions, including altered fire regimes, drought, excessive use by domestic and wild ungulates, and conifer encroachment.

Modelling the management of forest ecosystems: Importance of wood decomposition

Publications Posted on: May 10, 2018
Scarce and uncertain data on woody debris decomposition rates are available for calibrating forest ecosystem models, owing to the difficulty of their empirical estimations.

Influence of climate on the growth of quaking aspen (Populus tremuloides) in Colorado and southern Wyoming

Publications Posted on: January 10, 2017
We analyzed a series of increment cores collected from 260 adult dominant or co-dominant quaking aspen (Populus tremuloides Michx.) trees from national forests across Colorado and southern Wyoming in 2009 and 2010. Half of the cores were collected from trees in stands with a high amount of crown dieback, and half were from lightly damaged stands.

Group clearfell harvest can promote regeneration of aspen forests affected by sudden aspen decline in western Colorado

Publications Posted on: August 20, 2016
An experimental assessment of the use of clearfell harvesting to initiate a regeneration response in commercially managed aspen forests affected by sudden aspen decline (SAD) was conducted in western Colorado in cooperation with the USDA Forest Service. Nine pure commercial quality aspen stands, with three levels of mortality attributed to SAD, were selected (three replicates per mortality level).

Does clear-cut harvesting accelerate initial wood decomposition? A five-year study with standard wood material

Publications Posted on: June 07, 2016
Coarse woody debris (CWD) serves a variety of ecological functions in forests, and the understanding of its decomposition is needed for estimating changes in CWD-dependent forest biodiversity, and for the quantification of forest ecosystem carbon and nutrient pools and fluxes.

Herbivory and advance reproduction influence quaking aspen regeneration response to management in southern Utah, USA

Publications Posted on: May 27, 2016
Recent concern regarding the potential decline of quaking aspen (Populus tremuloides Michx.) forests in the western United States has sparked concern over whether the species can be effectively regenerated. Using a retrospective approach, we quantified the response of regenerating aspen stems to an ordinary set of silvicultural treatments conducted over approximately the past decade in southern Utah, USA.

Using Forest Health Monitoring to assess aspen forest cover change in the southern Rockies ecoregion

Publications Posted on: May 12, 2016
Long-term qualitative observations suggest a marked decline in quaking aspen (Populus tremuloides Michx.) primarily due to advancing succession and fire suppression. This study presents an ecoregional coarse-grid analysis of the current aspen situation using Forest Health Monitoring (FHM) data from Idaho, Wyoming, and Colorado.

Sustaining aspen in western landscapes: Symposium proceedings; 13-15 June 2000; Grand Junction, CO

Publications Posted on: May 12, 2016
The current status and trend of aspen is a topic of debate; some studies have claimed dramatic reductions in aspen stands while others have found no major changes. The actual picture of aspen forests across the West is variable, and the presence of conifers and ungulates in aspen may or may not indicate a progressive loss of aspen.

Forest vegetation of the Black Hills National Forest of South Dakota and Wyoming: A habitat type classification

Publications Posted on: May 07, 2015
A vegetation classification based on concepts and methods developed by Daubenmire was used to identify 12 forest habitat types and one shrub habitat type in the Black Hills. Included were two habitat types in the Quercus macrocarpa series, seven in the Pinus ponderosa series, one in the Populus tremuloides series, two in the Picea glaucci series, and one in the Cercocarpus montanus series.

Habitat use data for male ruffed grouse in the Black Hills National Forest

Datasets Posted on: March 27, 2015
Ruffed grouse (Bonasa umbellus) are native upland game birds and a management indicator species (MIS) for aspen (Populus tremuloides) in the Black Hills National Forest in South Dakota and Wyoming. Drumming surveys were conducted in the spring of 2007 and 2008 to locate used and unused male ruffed grouse sites from which habitat characteristics were compared at increasing spatial scales of 200 meters (m), 400 m, 1600 m, and 4800 m.